USN-4561-1: Rack vulnerabilities

30 September 2020

Rack could be made to expose sensitive information over the network.

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Releases

Packages

  • ruby-rack - modular Ruby webserver interface

Details

It was discovered that Rack incorrectly handled certain paths. An attacker
could possibly use this issue to obtain sensitive information.
(CVE-2020-8161)

It was discovered that Rack incorrectly validated cookies. An attacker
could possibly use this issue to forge a secure cookie. (CVE-2020-8184)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.04

In general, a standard system update will make all the necessary changes.

References

Related notices

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Further reading